Coins

These are used to make purchases at the Journey Shop found within Journey (where the Blimp is).

Where do you get them?

Primarily you get them by defeating heroes located in the Journey area of the game. They can sometimes also be awarded as a prize for winning a Brawl (like pretty much all the resources within the game).

These are used to make purchases in the Dark Shop located within the Dark Tower (do we really need to say that's under the picture of the Dark Tower?)

Where do you get them?

Primarily you get them by winning the battles in the Dark Tower area of the game. They can sometimes also be awarded as a prize for winning a Brawl (like pretty much all the resources within the game - as mentioned above). They are also sometimes available in the Shop as part of a package.

You spend them on the Friends Shop to select a daily gift to give to all your friends. One purchase max a day but that purchase goes to everyone. The gifts available are normally Hero Souls, Gold, and Pal Points.